const express = require('express')
const { Mongoose } = require('mongoose')
const app = express()

// 跨域
app.use(require('cors')())
app.use(express.json())

const mongoose = require('mongoose')
mongoose.connect('mongodb://localhost:27017/element-admin',{
    useNewUrlParser:true,
    useFindAndModify:true,
    useCreateIndex:true,
    // useUnifiedTopology:true
})

const Article = mongoose.model('Article',new mongoose.Schema({
    title:{ type:String },
    body: { type:String }
}))

app.get('/',async(req,res)=>{
    res.send('index')
})

// 新增文章
app.post('/api/articles',async(req,res)=>{
    const article = await Article.create(req.body)
    res.send(article)
})

// 文章接口
app.get('/api/articles',async(req,res)=>{
    const articles = await Article.find()
    res.send(articles)
})

// 删除文章
app.delete('/api/articles/:id',async(req,res)=>{
    await Article.findByIdAndDelete(req.params.id)
    res.send({
        status:true
    })
})

// 文章详情
app.get('/api/articles/:id',async(req,res)=>{
    const article = await Article.findById(req.params.id)
    res.send(article)
})

// 修改文章
app.put('/api/articles/:id',async(req,res)=>{
    const article = await Article.findByIdAndUpdate(req.params.id,req.body)
    res.send(article)
})

app.listen(3001,()=>{
    console.log('http://localhost:3001/')
})